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Duplication of the premolar dentition
M L Kantor1, C S Bailey, E J Burkes
1Section of Oral Radiology, University of North Carolina School of Dentistry, Chapel Hill.
Oral Surgery, Oral Medicine, and Oral Pathology
|July 1, 1988
Summary
Supernumerary teeth are rare dental anomalies. This case highlights a unique instance of complete premolar duplication and canine premolarization in a pediatric patient.
Area of Science:
- Dentistry
- Human Genetics
- Developmental Biology
Background:
- Supernumerary teeth, or hyperdontia, are defined as teeth beyond the normal dental formula.
- While often linked to genetic syndromes, they can occur as isolated anomalies.
- This case focuses on a rare presentation without a known syndromic association.
Observation:
- A 9-year-old African American male presented with an unusual dental anomaly.
- The patient exhibited complete duplication of the premolar dentition.
- Permanent canines also showed signs of premolarization, a developmental alteration.
Findings:
- The primary finding was the presence of multiple supernumerary teeth.
- Specifically, there was a complete duplication of all premolars.
- Canine teeth demonstrated a morphological change consistent with premolarization.
Implications:
- This case expands the understanding of isolated dental anomalies and hyperdontia.
- It underscores the importance of detailed dental examinations in pediatric patients.
- The findings may contribute to future research on the genetic and developmental pathways of tooth formation.